TWA Dictionary vs Modal Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TWA Dictionary
Master American Sign Language with a comprehensive dictionary featuring over 25,000 signs, variations, and cultural insights. Created by a Deaf team, it offers thematic organization, user-driven content requests, and regular updates for an enhanced learning experience.
- Over 25,000 ASL signs
- Sign variations and cultural insights
- Thematic organization
- User-requested content
- Continuous updates
- Educational blog on Deaf Culture
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Looking for a great ASL resource? Our ASL Dictionary, created by a 100% Deaf team, includes over 25,000 signs along with sign variations, Deaf signers from diverse backgrounds, and an array of features to enhance your learning experience! What’s the Sign? ASL Dictionary is your ultimate resource for mastering American Sign Language, designed and brought to you by the Deaf community. Key Features: Extensive Library: Access a comprehensive collection of over 25,000 signs, including regional variations and cultural insights. Thematic Organization: Easily navigate through themed categories tailored to your interests. Tagged for Every Occasion: Quickly find the signs you need, whether for a job interview or a specific topic. Continuous Updates: Regular updates ensure fresh and relevant content. Educational Blog: Explore Deaf Culture with insightful posts on community topics. User-Driven Content: Can’t find a sign? Request new signs or sentence examples, and help expand the dictionary. Easy Navigation: An intuitive interface makes your learning journey smooth and enjoyable. Subscription Details: What’s the Sign? ASL Dictionary offers flexible subscription plans, including monthly and annual options. Start your learning journey with a three-day free trial. Subscriptions automatically renew unless canceled, and you can manage them through your account settings. Discover the richness of American Sign Language with What’s the Sign? ASL Dictionary – where learning becomes a personalized, ongoing experience. Privacy Policy: https://twadictionary.com/privacy/ Terms of Use: https://twadictionary.com/terms/ Also available in the app.
Modal Math
This app provides accessible math practice designed by teachers for students with special language needs. It focuses on fostering conceptual understanding and reinforcing mathematical language for diverse learners.
- Designed by teachers
- Accessible for special language needs
- Fosters conceptual understanding
- Reinforces mathematical language
- Supports diverse learning needs
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Learn from anywhere in the Modal Math app! Created by real teachers for real students. At Modal Math, we believe that math learning should to be accessible for learners with special language needs. We aim to create a tool that is makes math learning accessible and meaningful to all. The goal is to foster conceptual understanding of mathematics while establishing and reinforcing language for students with diverse learning needs and ability levels. Our dream is to provide access to learning forstudents in accordance with their needs. Until we do this, we can never know what a student is capable of. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Modal Math at 5.0 against TWA Dictionary's 4.3. TWA Dictionary's advantage is ratings volume (33 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. TWA Dictionary sells 5 in-app purchases, starting at $4.99 per month and Modal Math sells 2 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.
Modal Math holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: TWA Dictionary has 33 ratings behind it against 2, so its average is the more settled of the two.
TWA Dictionary ships an update every 3 weeks, Modal Math every 5 weeks. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | TWA Dictionary | Modal Math |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (33 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 76.9% of reviews | — |
| Number of ratings | 33 — better | 2 |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 41 MB | 75 MB |
| Age rating | 12+ | 4+ |
| Developer | TWA Innovations LLC | Asledu LLC |
Customer experience
TWA Dictionary
Modal Math
In-app purchases
TWA Dictionary
- Pro Monthly3 Days trial$4.991 Month
- Pro Yearly3 Days trial$49.991 Year
- Gift Code Month$4.99
- Gift Code 6 Months$29.99
- Gift Code 1 Year$49.99
Modal Math
- Classroom Membership$24.991 Month
- DHH Teacher Resources$6.99






